Home / 45,157.57-67,780.09-21,800.41

Finding the Fourth Proportional to 45,157.57, 67,780.09 and 21,800.41

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Solution

The fourth proportional to 45,157.57, 67,780.09 and 21,800.41 is: 32,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.57 : 67,780.09 = 21,800.41 : x
  2. Step 2: Convert to fraction form
    45,157.57/67,780.09 = 21,800.41/x
  3. Step 3: Cross multiply
    45,157.57x = 67,780.09 × 21,800.41
  4. Step 4: Simplify right side
    45,157.57x = 1,477,633,751.84
  5. Step 5: Solve for x
    x = 1,477,633,751.84/45,157.57
  6. Step 6: Final answer
    x = 32,721.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.